We learn from the passage that much of California's electronic waste has been ______.
A. collected by non-profit agencies
B. damped into local landfills
C. exported to foreign countries
D. recycled by computer manufacturers
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Which of the following did NOT happen to Mr. Green when he was traveling？
A. He slept in a prison in Germany.
B. He was nearly killed in Devon.
C. He managed to reach the center of the Middle East war.
D. He took a train on which he was threatened by a murderer.
Which of the following statements about traveling is TRUE according to Mr. Green？
A. Traveling is only a time for him to have a rest.
B. Traveling provides him with a lot of experience.
C. He is free from responsibility when traveling.
D. He changes a lot every time after traveling.
Mr. Green affords his traveling by all of the following EXCEPT ______.
A. working for his friends living in the place he's visiting
B. singing and giving concerts during the trip
C. living cheaply when traveling
D. money from his main work
According to the writer, what may chiefly be responsible for the Columbia accident？
A supposed damage to the left wing of the spacecraft.
B. The deliberate rejection of satellite images offered.
C. A sense of sentiment and arrogance involved.
D. The space agency's inaction during its mission.
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